Experimental measurement of the mobilities of atomic, Ne+, and dimer, Ne2+, ions in Ne

We measured the reduced mobilities of the atomic, Ne⁺, and dimer, Ne₂⁺, ions in Ne, under different pressures and reduced electric fields, at 300 K. The value obtained for the atomic ion, 4.1 cm²V^-1 s^-1, is in good agreement with other values published in the scientific literature. The value obtained for the mobility of the dimer ion, 7.3 cm² V^-1 s^-1, is not in accordance with other published data. We discuss the most probable sources of error.